the results of searchTextXML.php always include samples found by filtering by usernames, even if I set "searchUsernames=0", e.g.:"search=bird&searchTags=0&searchDescriptions=0&searchUsernames=0&searchFilenames=0&order=0&limit=0" gives me back 116 samples and not 0.

The others (searchDescriptions, searchTags, searchFilenames) are working fine...